ikross 2.4GHz Wireless Optical Mouse with 3-Button for Laptop/Desktop PC - White Brand new generic 2.4GHz wireless optical mouse. Comfort and control that goes with you wherever your laptop goes. Radio Frequency: 2.4GHz Spectrum. Connection Type: A USB 2.0 RF Wireless Adapter (INCLUDED). Button quantity: 3. Scroll Wheel: 1. Tracking Method: Optical. Resolution: 1200 CPI. Surface Process: PU. Max/Min Working Current: 9mA/0.08mA. Standby status Working Current: 0.4mA. Sleep status Working Current: 0.08mA. Power Supply: 2 AAA Alkaline Battery (NOT INCLUDED). Power ON/OFF Switch: YES. Report Rate: 125. Transmit Range: Up to 10 meter. Dimension (L X W X H): 110 x 80 x 30 mm. Weight: Approx. 3 oz (with 2 AAA Alkaline Battery). Package Content: 2.4GHz Wireless Optical Mouse x 1; USB 2.0 RF Wireless Adapter X 1.